Quiz about Learning outcome 1

Question 1

Selesaikan $$x^2\ -\ 9\ =\ 0$$

Accepted Answer

x= 3 & x = -3

Answer

x = 3 & x = 3

Answer

x = -3 & x = -3

Answer

x = 0 & x = 3

Question 2

$$4x^2\ -\ 25\ =\ 0$$

Accepted Answer

$$x\ =\ \frac{5}{2}\ \&\ x\ =\ -\frac{5}{2}$$

Answer

$$x\ =\ 5 ext{/2 sahaja}$$

Answer

$$x\ =\ -\frac{5}{2}\ sahaja$$

Answer

$$x=-\frac{5}{2}\ \ \&\ x\ =\ -\frac{5}{2}$$

Question 3

$$25x^2\ =\ 64$$

Accepted Answer

$$x\ =\ 1.6\ dan\ x\ =\ -1.6$$

Answer

$$x\ =\ 1.6\ sahaja$$

Answer

$$x\ =\ 1.6i\ \ \&\ x\ =-1.6i$$

Answer

x = -1.6 sahaja

Question 4

$$x^2\ +\ 7x\ +\ 10$$

Accepted Answer

x = -2 & x = -5

Answer

x = 10 & x = -1

Answer

x = 10 & x = 1

Answer

x = 2 & x = 5

Question 5

$$x^2\ +\ 5x\ =\ 36$$

Accepted Answer

x = 4 & x = -9

Answer

x = -4 & x = 9

Answer

x = -2.5 + 5.45i & x=-2.5 -5.45i

Answer

x = 2.5 + 5.45i & x = 2.5 = 2.5 - 5.45i

Question 6

$$x^2+\ 4x\ =\ -4$$

Accepted Answer

x = -2 & x = -2

Answer

x = 2 sahaja

Answer

x = -2 & x = 0

Answer

x = 2 & x = -2

Question 7

$$x^2+\ 17x\ =\ -72$$

Accepted Answer

x = -8 & x = -9

Answer

x = -3.51 & x = 20.5

Answer

x = 3.51 & x = -20.5

Answer

x = 8 & x = 9

Question 8

$$x^2\ +\ 4x\ =\ 0$$

Accepted Answer

x = -4 & x = 0

Answer

x = 4

Answer

x = -4

Answer

x = 4 & x = 0

Question 9

$$4x^2\ -\ 16x\ =\ 0$$

Accepted Answer

x = 4 & x = 0

Answer

x= 4 sahaja

Answer

x = -4 sahaja

Answer

x = -4 & x = 0

Question 10

$$x^2\ -\ 3x\ -\ 18$$

Accepted Answer

x = 6, -3

Answer

x = -6, 3

Answer

x = 18, 1

Answer

x = -18, 1

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